Gas range burner and lighter



March 3, 1936. P- s, HARPER 2,032,877

GAS RANGE BURNER AND LIGHTER Filed April 3, 1953 2 Sheets-Sheet 1 iii ull/lll/l/ March 3, 1936. P s, HARPER 2,032,877

GAs RANGE BURNER AND LIGHTER `gled April 3, 1935 @Mm/@Em Patented Mar. 3.,. 1936 UNITED STATES PATENT OFFICE 2 Claims.

This invention relates to double section burners incorporating automatic lighting means and particularlyv to a double burner of the round or ring variety with a centrally located simmer section.

This lighter consists of an advantageous arrangement of the parts of an automatic lighter in conjunction with a system of such double section burners for the purpose of accomplishing the objects below set forth.

The first object of this invention is to provide means for automatically igniting a centrally located simmer section in a double section burner.

Another object of this invention is to initiate automatic ignition in the center of a gas stove burner.

A further object of this invention is to provide practical means of extending a lighter tube through the side wall of a ring burner.

A further object of this invention is to provide automatic means of lighting a central simmer section with greater speed of operation.

A further object of this invention is to provide means of central fast lighting and at the same time overcome diiculties due to upward draft in the central hole in a gas range burner.

A further object' of this invention is to provide a common burnerhead adapted to central lighting in a system of gas range top burners.

Theseand other objects of this invention will be more apparent from the drawings, in which:

Figure 1 is a plan view of a system of double section burners incorporating the features of this invention;

Figure 2 is a sectional elevation along the line 2--2 of Figure 1;

Figure 3 is a partial sectional elevation along the line 3-3 of Figure 1 Figure 4 is an enlarged sectional elevation of the lighter jet used in the previous figures;

Figure 5 is a sectional elevation of a modied form of burner head that may be used in conjunction with the burners shown in Figure 1;

Figure 6 is a plan view of a system of burners showing a second modified form of this invention;

Figure 7 is a partial sectional elevation along the line 1-1 of Figure 6; and

Figure 8 is a vertical section along the line 8-8 of the burner head shown in Figure '7.

Referring now to the drawings in which like figures refer to like parts throughout, in Figure 1 a front burner II is shown having a ring type burner head and large section I2 and having a mixing tube I3 leading to said burner head. Said burner head I2 has a plurality of ports I2a after the manner of the usual construction of ring type gas range top burners. Said burner head I2 has av large central opening I4 having in its center a small or simmer burner section I5 having burner ports arranged in its surface I5a. The mixing 5 tube I6 is cast integral with aforesaid mixing tube I3 and connects with said simmer section l5. A gas valve I1 has nozzles I8 and I9 projecting into said mixing tubes I3 and I6 respectively, and said gas valve I1 is screwed into or otherwise fastened 10 in a manifold 20. Said mixing tubes I3 and I6 each have openings 2l for the admission of primary air with shutters 22 which may be rotated so that primary air supply can be regulated and fixed at any desired position by means of the 15 clamping screws 23 tapped into the strap 24, all such opening and adjusting means to the mixing tubes being in accordance with a usual form of double section gas range burner construction.

The mixing tubes I3 and I6 and said simmer 20 section I5 are made in a casting separate from said burner section I2 and said burner section I2 is joined to its mixing tube I3 by means of a bolted joint having a gasket 25 and said parts are held in an assembled relation by means of 25 bolts 26 passing through the mixing tube I3 and tapped into the burner head I2.

The burner head I2 has an inverted trough 21 cast in its under surface, said trough having one end entering the central hole I4 and said trough 30 extending radially outward from said burner section as shown. The mixing tube I6 has a flat upper surface 28 which is extended so as to cover said trough 21 throughout its entire length so that the trough 21 as closed by said surface 28 35 constitutes in effect a tube. Said burner section I5 has a lighter jet 29 fastened therein and said jet is arranged to discharge into the tube 21. In substitution for said lighter jet a lighter orifice may be used wherewith satisfactory operation 40 may be obtained in some forms of my invention. Said lighter jet and said tube comprise a lighting meansas described in my copending appli- 'cation Serial No. 658,763, flled February 27, 1933.

In said Figure 1 there is a second burner 30 45 having the same type construction as above described burner II, and having all the hereinbefore described parts which are in each case similarly numbered in the drawings. So far as described said front burner I I and said rear burner 50 30 are exactly similar except that the mixing tubes in the rear burner enter the front end of the burner head I2 whereas the mixing tubes to the front burner make a return bend and enter the rear ofthe respective burner head. The 5 5 consequent reversing of the burner heads i2 on the front and rear burners causes the tubes 21 to extend toward each other as shown in the' drawings, and these two tubes extend in the proximity of a lighter head ll which serves as a means of ignition all as described in my above mentioned copending application. Said lighter head is held in location by means of a suitable cone shaped opening 32 in an arm l! cast integral with the mixing tube portion of said rear burner 30. Said lighter head is fastened to a tube 34 extending into a lighter valve 25 and said lighter valve is screwed-into the said manifold 20 which is also all as disclosed in my copending application above indicated. A

'I'he lighter arm 32 has a downward projecting pin 36 and the mixing tube portion of said burner has a second pin 31 extending downward in the position shown in the drawings, said pins lt and 31 entering holes 3l in a strap l! all of which constitutes a supporting means for the system of burners shown. 'I'he front burner Il has a lug 40 with a pin 4l, said parts extending in a suitable manner so as to engage the aforesaid arm 33 for the purpose of supporting the front burner H, and said front burner Il is also supported by a lug 42 on the mixing tube section of the rear burner Ill.

In Figure 4 I have shown an enlarged sectional view of the jet 29 which has a central discharge passage 29a, a, plurality of side entering es 28h, and a central entrance opening 29e. In placing such lighting jet within the central hole as I4 of a burner. I have found that the draft of air up through such central hole may interfere to a very considerable extent with the proper functioning of such lighter. It is to overcome such diiliculty that I have provided the lighter jet as shown with a central inlet opening 20c which increases the velocity of discharge from the jet through the passageway 24a and at the same time I have employed side entrance passages 28b, 2lb, to modify such forward velocity effect. It is by a judicious proportioning between the areas of these passages in the lighter jet 2l that a proper and satisfactory operation is obtained. When the lighting e as 21 is of 'considerable length, it is then necessary to increase the size of the central e 29e in relation to the side passages 2lb so as to obtain a suiilcient velocity to overcome the upward draft action through the hole I4 and to obtain suillcient force to propel the combustible mixture to the full length of the tube 21. This arrangement in the lighting jet is an advantageous part of my invention. However, by -careful proportioning of parts a single lighting oriiice may be used in the place of the lighting jet, such proportioning involving the length and area of the lighting tube as 21 and in the case where a single orice is used such is all in accordance with the intended .scope of this invention. It should be noted that for proper eiect, the combined area of all the entrance passages 2lb and 2lc to the jet 2l should be less than the area of the discharge passage 29a.

'Ihe operation of this invention in its lighting effect is the same as described in my copending application mentioned, except that I have shown a means of extending the lighting tube through a large section so as to initiate lighting of a separate centrally located simmer section. The desirability of such lighting of the simmer section is at once apparent fr'om the fact that in any double section burner it is essential for the purpose of such burners that the simmer section burn with the large section extinguished, whereas it is the usual practice that whenever the outer I contemplate that for the purposes where a' double gas valve is used, -wherein either section of a double burner may be burned independently, a second tube leading to the outer section might be superposed upon the tube 21, said second tube extending to the proximity of the pilot light in the same manner as tube means 21 shown. 'Ihis would constitute simply a combination of my above designated previous invention with the invention herein described and consequently it is seen that figures and claims of the combination of these two inventions would be unnecessary.

Referring again to the drawings. Figure 5 shows a modied form of my invention, in which figure a burner section 43 is shown having burner ports 43a in the manner of the burners previously described. 'Ihis modiiied burner head of Figure 5 has a tube 45 cast through its wall, said tube 45 constituting a lighting tube and having the saine effect as .the tube in the previously described burners formed by the trough 21 and mixing tube surface 2l. 'I'he tube 45 may be formed by a separate core, or such passage may be drilled through the burner section 43, or it may be formed in any other practical manner. In any event, said tube performs the same function as the passage previously described and formed by the meeting of the upper and lower parts of the burner structure.

Referring now to Figure 6, a complete system of four burners 41, 4I, 49 and SII is shown, and these burners while differing slightly from burners described in shape and form have all structural .parts and passages numbered from I3-2I inclusive described in connection with Figure 1. 'I'hese like parts in Figure 6 are in every case given the same numerical characters on the drawings as the like and respective parts in Figure 1. In Figure 6, however, the burner heads 12b each has four tubes Il cast through the wall and these tubes extend only slightly beyond the burner sections I2b. The extending of these tubes is for the support of the spider 52 comprising the central housing 53 and tubes I4 leading therefrom and extending so as to rest on one of the extensions of the tubes Il in each of the burner heads 12b. The tubes 54 each has a bell end 55 open at the bottom but so formed as to fit as closely as possible the tubes 5I so that each tube 54 together with the tube 5I on which it rests forms in eiIect a continuous conduit from the central hole I4 in each burner I2b to the housing 53 of the spider 52.

'I'he housing 53 has extended therein a lighter head 56 which is connected with a tube $1 leading from a lighter valve 58, said valve being screwed into the manifold 20 in the manner shown and described in connection with the similar parts of Figure l. In each burner of Figure 6 the lighter jet 2l is positioned in its respective simmer section so as to discharge into the particular tube 5| of the burner head I2b which connects with one of the tubes I4. Each burner nosas?? in Figure 6 has two forked extensions Se which rest on rods 60, these parts serving the purpose solely of supporting all burners in a suitable manner. Any other supporting means may be provided as such means is common practice in gas range construction and no particular sup porting method is necessary to the proper functioning of this invention.

In lighting operation, this modled form of my invention shown in Figur-e 6 is similar in every respect to the operation of the first form shown in Figure 1, but it should be particularly noted that in Figure 6 I have devised a burner head of which a single pattern may be used for each of the four top burners in the usual arrangement in gas range construction. 'This result is also obtained with a single lighter for the ignition of all top burners.

While I have described more or less precisely the details of construction, I do not wish to be understood as limiting :myself thereto, as I contemplate changes in i'orm and the proportion of parts and the substitution of equivalents as circumstances may suggest or render expedient without departing from the spirit or scope oi' the invention.

I claim:

1. In combination, an annular main heating burner, a simmering burner positioned centrally oi said annular burner but on a lower plane, separate means connected to each oi said burners to deliver air and gas thereto, means to supply fuel to each of said burners, a constantly burning pilot light located out of ignitlng relation to both of said burners, and a conductor tube below said annular burner and having one end positioned adjacent said pilot and the other end positioned adjacent said simmering burner, said simmering burner having a plurality of orices one of which is positioned to direct gas into said conductor tube to be ignited by said pilot, and at least one other of which. orices is directed upwardly toward said annular burner to ignite the same when gas is supplied thereto, and to provide a. small name for simmering purposes.

2. In combination, a. main heating burner having a central hole, a simmering burner positioned centrally of said main heating. burner, separate means connected to each of said burners to deliver air and gas thereto, a constantly burning pilot light located out of igniting relation to both of said burners, and conductortube below said annular burner and having one end l ignite the same when gas is supplied thereto, and

to provide a small ilame for simmering purposes.

PHILIP S. HARPER. 

